US 12,226,170 B2
Method and system for computer assisted surgery
Matts Andersson, Lerum (SE)
Assigned to Ortoma AB, Gothenburg (SE)
Filed by Ortoma AB, Gothenburg (SE)
Filed on May 10, 2023, as Appl. No. 18/195,780.
Application 16/004,887 is a division of application No. 14/419,515, granted, now 9,993,305, issued on Jun. 12, 2018, previously published as PCT/SE2013/050952, filed on Aug. 5, 2013.
Application 18/195,780 is a continuation of application No. 17/201,687, filed on Mar. 15, 2021, granted, now 11,666,388.
Application 17/201,687 is a continuation of application No. 16/247,060, filed on Jan. 14, 2019, granted, now 10,945,795, issued on Mar. 16, 2021.
Application 16/247,060 is a continuation of application No. 16/004,887, filed on Jun. 11, 2018, granted, now 10,179,032, issued on Jan. 15, 2019.
Claims priority of application No. 1250919-6 (SE), filed on Aug. 8, 2012.
Prior Publication US 2023/0277253 A1, Sep. 7, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. A61B 34/10 (2016.01); A61B 17/17 (2006.01); A61B 34/20 (2016.01); A61B 17/00 (2006.01); A61B 17/16 (2006.01); A61B 90/00 (2016.01)
CPC A61B 34/20 (2016.02) [A61B 17/1757 (2013.01); A61B 34/10 (2016.02); A61B 2017/00725 (2013.01); A61B 17/1622 (2013.01); A61B 2034/102 (2016.02); A61B 2034/105 (2016.02); A61B 2034/107 (2016.02); A61B 2034/2048 (2016.02); A61B 2034/2055 (2016.02); A61B 2034/2068 (2016.02); A61B 2090/364 (2016.02)] 20 Claims
OG exemplary drawing
 
1. A method for computer assisted orthopedic feedback of at least one surgical object relative a pre-operative plan, wherein the surgical object is moveable relative to a patient structure during surgery; the pre-operative plan including a virtual object, which is a virtual representation of the surgical object, and a virtual structure, which is a virtual representation of the patient structure; comprising:
providing the pre-operative plan including planned position and orientation of the virtual object relative to the virtual structure;
obtaining a position of the patient structure based on a surface of the patient structure using a surgical navigation system;
obtaining a position of the surgical object using the surgical navigation system;
registering the patient structure to the virtual structure;
tracking a current position and orientation of the surgical object using the surgical navigation system; and
providing feedback of a current position and orientation of the surgical object relative to the planned position and orientation of the virtual object based on the tracked current position and orientation of the surgical object.